#define ttn_channel(b, src, swiz) \
nir_swizzle(b, src, SWIZ(swiz, swiz, swiz, swiz), 1, false)
+static gl_varying_slot
+tgsi_varying_semantic_to_slot(unsigned semantic, unsigned index)
+{
+ switch (semantic) {
+ case TGSI_SEMANTIC_POSITION:
+ return VARYING_SLOT_POS;
+ case TGSI_SEMANTIC_COLOR:
+ if (index == 0)
+ return VARYING_SLOT_COL0;
+ else
+ return VARYING_SLOT_COL1;
+ case TGSI_SEMANTIC_BCOLOR:
+ if (index == 0)
+ return VARYING_SLOT_BFC0;
+ else
+ return VARYING_SLOT_BFC1;
+ case TGSI_SEMANTIC_FOG:
+ return VARYING_SLOT_FOGC;
+ case TGSI_SEMANTIC_PSIZE:
+ return VARYING_SLOT_PSIZ;
+ case TGSI_SEMANTIC_GENERIC:
+ return VARYING_SLOT_VAR0 + index;
+ case TGSI_SEMANTIC_FACE:
+ return VARYING_SLOT_FACE;
+ case TGSI_SEMANTIC_EDGEFLAG:
+ return VARYING_SLOT_EDGE;
+ case TGSI_SEMANTIC_PRIMID:
+ return VARYING_SLOT_PRIMITIVE_ID;
+ case TGSI_SEMANTIC_CLIPDIST:
+ if (index == 0)
+ return VARYING_SLOT_CLIP_DIST0;
+ else
+ return VARYING_SLOT_CLIP_DIST1;
+ case TGSI_SEMANTIC_CLIPVERTEX:
+ return VARYING_SLOT_CLIP_VERTEX;
+ case TGSI_SEMANTIC_TEXCOORD:
+ return VARYING_SLOT_TEX0 + index;
+ case TGSI_SEMANTIC_PCOORD:
+ return VARYING_SLOT_PNTC;
+ case TGSI_SEMANTIC_VIEWPORT_INDEX:
+ return VARYING_SLOT_VIEWPORT;
+ case TGSI_SEMANTIC_LAYER:
+ return VARYING_SLOT_LAYER;
+ default:
+ fprintf(stderr, "Bad TGSI semantic: %d/%d\n", semantic, index);
+ abort();
+ }
+}
+
+/* Temporary helper to remap back to TGSI style semantic name/index
+ * values, for use in drivers that haven't been converted to using
+ * VARYING_SLOT_
+ */
+void
+varying_slot_to_tgsi_semantic(gl_varying_slot slot,
+ unsigned *semantic_name, unsigned *semantic_index)
+{
+ static const unsigned map[][2] = {
+ [VARYING_SLOT_POS] = { TGSI_SEMANTIC_POSITION, 0 },
+ [VARYING_SLOT_COL0] = { TGSI_SEMANTIC_COLOR, 0 },
+ [VARYING_SLOT_COL1] = { TGSI_SEMANTIC_COLOR, 1 },
+ [VARYING_SLOT_BFC0] = { TGSI_SEMANTIC_BCOLOR, 0 },
+ [VARYING_SLOT_BFC1] = { TGSI_SEMANTIC_BCOLOR, 1 },
+ [VARYING_SLOT_FOGC] = { TGSI_SEMANTIC_FOG, 0 },
+ [VARYING_SLOT_PSIZ] = { TGSI_SEMANTIC_PSIZE, 0 },
+ [VARYING_SLOT_FACE] = { TGSI_SEMANTIC_FACE, 0 },
+ [VARYING_SLOT_EDGE] = { TGSI_SEMANTIC_EDGEFLAG, 0 },
+ [VARYING_SLOT_PRIMITIVE_ID] = { TGSI_SEMANTIC_PRIMID, 0 },
+ [VARYING_SLOT_CLIP_DIST0] = { TGSI_SEMANTIC_CLIPDIST, 0 },
+ [VARYING_SLOT_CLIP_DIST1] = { TGSI_SEMANTIC_CLIPDIST, 1 },
+ [VARYING_SLOT_CLIP_VERTEX] = { TGSI_SEMANTIC_CLIPVERTEX, 0 },
+ [VARYING_SLOT_PNTC] = { TGSI_SEMANTIC_PCOORD, 0 },
+ [VARYING_SLOT_VIEWPORT] = { TGSI_SEMANTIC_VIEWPORT_INDEX, 0 },
+ [VARYING_SLOT_LAYER] = { TGSI_SEMANTIC_LAYER, 0 },
+ };
+
+ if (slot >= VARYING_SLOT_VAR0) {
+ *semantic_name = TGSI_SEMANTIC_GENERIC;
+ *semantic_index = slot - VARYING_SLOT_VAR0;
+ return;
+ }
+
+ if (slot >= VARYING_SLOT_TEX0 && slot <= VARYING_SLOT_TEX7) {
+ *semantic_name = TGSI_SEMANTIC_TEXCOORD;
+ *semantic_index = slot - VARYING_SLOT_TEX0;
+ return;
+ }
+
+ if (slot >= ARRAY_SIZE(map)) {
+ fprintf(stderr, "Unknown varying slot %d\n", slot);
+ abort();
+ }
+
+ *semantic_name = map[slot][0];
+ *semantic_index = map[slot][1];
+}
+
+/* Temporary helper to remap back to TGSI style semantic name/index
+ * values, for use in drivers that haven't been converted to using
+ * FRAG_RESULT_
+ */
+void
+frag_result_to_tgsi_semantic(gl_frag_result slot,
+ unsigned *semantic_name, unsigned *semantic_index)
+{
+ static const unsigned map[][2] = {
+ [FRAG_RESULT_DEPTH] = { TGSI_SEMANTIC_POSITION, 0 },
+ [FRAG_RESULT_COLOR] = { TGSI_SEMANTIC_COLOR, -1 },
+ [FRAG_RESULT_DATA0 + 0] = { TGSI_SEMANTIC_COLOR, 0 },
+ [FRAG_RESULT_DATA0 + 1] = { TGSI_SEMANTIC_COLOR, 1 },
+ [FRAG_RESULT_DATA0 + 2] = { TGSI_SEMANTIC_COLOR, 2 },
+ [FRAG_RESULT_DATA0 + 3] = { TGSI_SEMANTIC_COLOR, 3 },
+ [FRAG_RESULT_DATA0 + 4] = { TGSI_SEMANTIC_COLOR, 4 },
+ [FRAG_RESULT_DATA0 + 5] = { TGSI_SEMANTIC_COLOR, 5 },
+ [FRAG_RESULT_DATA0 + 6] = { TGSI_SEMANTIC_COLOR, 6 },
+ [FRAG_RESULT_DATA0 + 7] = { TGSI_SEMANTIC_COLOR, 7 },
+ };
+
+ *semantic_name = map[slot][0];
+ *semantic_index = map[slot][1];
+}
+
static nir_ssa_def *
ttn_src_for_dest(nir_builder *b, nir_alu_dest *dest)
{
var->data.mode = nir_var_shader_in;
var->name = ralloc_asprintf(var, "in_%d", idx);
- /* We should probably translate to a VERT_ATTRIB_* or VARYING_SLOT_*
- * instead, but nothing in NIR core is looking at the value
- * currently, and this is less change to drivers.
- */
- var->data.location = decl->Semantic.Name;
- var->data.index = decl->Semantic.Index;
+ if (c->scan->processor == TGSI_PROCESSOR_FRAGMENT) {
+ var->data.location =
+ tgsi_varying_semantic_to_slot(decl->Semantic.Name,
+ decl->Semantic.Index);
+ } else {
+ assert(!decl->Declaration.Semantic);
+ var->data.location = VERT_ATTRIB_GENERIC0 + idx;
+ }
+ var->data.index = 0;
/* We definitely need to translate the interpolation field, because
* nir_print will decode it.
exec_list_push_tail(&b->shader->inputs, &var->node);
break;
case TGSI_FILE_OUTPUT: {
+ int semantic_name = decl->Semantic.Name;
+ int semantic_index = decl->Semantic.Index;
/* Since we can't load from outputs in the IR, we make temporaries
* for the outputs and emit stores to the real outputs at the end of
* the shader.
var->data.mode = nir_var_shader_out;
var->name = ralloc_asprintf(var, "out_%d", idx);
-
- var->data.location = decl->Semantic.Name;
- if (decl->Semantic.Name == TGSI_SEMANTIC_COLOR &&
- decl->Semantic.Index == 0 &&
- c->scan->properties[TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS])
- var->data.index = -1;
- else
- var->data.index = decl->Semantic.Index;
+ var->data.index = 0;
+
+ if (c->scan->processor == TGSI_PROCESSOR_FRAGMENT) {
+ switch (semantic_name) {
+ case TGSI_SEMANTIC_COLOR: {
+ /* TODO tgsi loses some information, so we cannot
+ * actually differentiate here between DSB and MRT
+ * at this point. But so far no drivers using tgsi-
+ * to-nir support dual source blend:
+ */
+ bool dual_src_blend = false;
+ if (dual_src_blend && (semantic_index == 1)) {
+ var->data.location = FRAG_RESULT_DATA0;
+ var->data.index = 1;
+ } else {
+ if (c->scan->properties[TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS])
+ var->data.location = FRAG_RESULT_COLOR;
+ else
+ var->data.location = FRAG_RESULT_DATA0 + semantic_index;
+ }
+ break;
+ }
+ case TGSI_SEMANTIC_POSITION:
+ var->data.location = FRAG_RESULT_DEPTH;
+ break;
+ default:
+ fprintf(stderr, "Bad TGSI semantic: %d/%d\n",
+ decl->Semantic.Name, decl->Semantic.Index);
+ abort();
+ }
+ } else {
+ var->data.location =
+ tgsi_varying_semantic_to_slot(semantic_name, semantic_index);
+ }
if (is_array) {
unsigned j;
struct ir3_shader_variant *so = ctx->so;
unsigned array_len = MAX2(glsl_get_length(in->type), 1);
unsigned ncomp = glsl_get_components(in->type);
- /* XXX: map loc slots to semantics */
- unsigned semantic_name = in->data.location;
- unsigned semantic_index = in->data.index;
unsigned n = in->data.driver_location;
+ unsigned slot = in->data.location;
- DBG("; in: %u:%u, len=%ux%u, loc=%u",
- semantic_name, semantic_index, array_len,
- ncomp, n);
+ DBG("; in: slot=%u, len=%ux%u, drvloc=%u",
+ slot, array_len, ncomp, n);
- so->inputs[n].semantic =
- ir3_semantic_name(semantic_name, semantic_index);
so->inputs[n].compmask = (1 << ncomp) - 1;
so->inputs[n].inloc = ctx->next_inloc;
so->inputs[n].interpolate = 0;
break;
}
- for (int i = 0; i < ncomp; i++) {
- struct ir3_instruction *instr = NULL;
- unsigned idx = (n * 4) + i;
+ if (ctx->so->type == SHADER_FRAGMENT) {
+ unsigned semantic_name, semantic_index;
+
+ varying_slot_to_tgsi_semantic(slot,
+ &semantic_name, &semantic_index);
+
+ so->inputs[n].semantic =
+ ir3_semantic_name(semantic_name, semantic_index);
+
+ for (int i = 0; i < ncomp; i++) {
+ struct ir3_instruction *instr = NULL;
+ unsigned idx = (n * 4) + i;
- if (ctx->so->type == SHADER_FRAGMENT) {
if (semantic_name == TGSI_SEMANTIC_POSITION) {
so->inputs[n].bary = false;
so->frag_coord = true;
instr = create_frag_input(ctx,
so->inputs[n].inloc + i - 8, use_ldlv);
}
- } else {
- instr = create_input(ctx->block, idx);
- }
- ctx->ir->inputs[idx] = instr;
+ ctx->ir->inputs[idx] = instr;
+ }
+ } else if (ctx->so->type == SHADER_VERTEX) {
+ so->inputs[n].semantic = 0;
+ for (int i = 0; i < ncomp; i++) {
+ unsigned idx = (n * 4) + i;
+ ctx->ir->inputs[idx] = create_input(ctx->block, idx);
+ }
+ } else {
+ compile_error(ctx, "unknown shader type: %d\n", ctx->so->type);
}
if (so->inputs[n].bary || (ctx->so->type == SHADER_VERTEX)) {
struct ir3_shader_variant *so = ctx->so;
unsigned array_len = MAX2(glsl_get_length(out->type), 1);
unsigned ncomp = glsl_get_components(out->type);
- /* XXX: map loc slots to semantics */
- unsigned semantic_name = out->data.location;
- unsigned semantic_index = out->data.index;
+ unsigned semantic_name, semantic_index;
unsigned n = out->data.driver_location;
+ unsigned slot = out->data.location;
unsigned comp = 0;
- DBG("; out: %u:%u, len=%ux%u, loc=%u",
- semantic_name, semantic_index, array_len,
- ncomp, n);
+ DBG("; out: slot=%u, len=%ux%u, drvloc=%u",
+ slot, array_len, ncomp, n);
if (ctx->so->type == SHADER_VERTEX) {
+ varying_slot_to_tgsi_semantic(slot,
+ &semantic_name, &semantic_index);
+
switch (semantic_name) {
case TGSI_SEMANTIC_POSITION:
so->writes_pos = true;
compile_error(ctx, "unknown VS semantic name: %s\n",
tgsi_semantic_names[semantic_name]);
}
- } else {
+ } else if (ctx->so->type == SHADER_FRAGMENT) {
+ frag_result_to_tgsi_semantic(slot,
+ &semantic_name, &semantic_index);
+
switch (semantic_name) {
case TGSI_SEMANTIC_POSITION:
comp = 2; /* tgsi will write to .z component */
compile_error(ctx, "unknown FS semantic name: %s\n",
tgsi_semantic_names[semantic_name]);
}
+ } else {
+ compile_error(ctx, "unknown shader type: %d\n", ctx->so->type);
}
compile_assert(ctx, n < ARRAY_SIZE(so->outputs));
projects / mesa.git / commitdiff